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Finding the Fourth Proportional to 635,711.60, 953,462.60 and 209,252.98

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Solution

The fourth proportional to 635,711.60, 953,462.60 and 209,252.98 is: 313,844.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,711.60 : 953,462.60 = 209,252.98 : x
  2. Step 2: Convert to fraction form
    635,711.60/953,462.60 = 209,252.98/x
  3. Step 3: Cross multiply
    635,711.60x = 953,462.60 × 209,252.98
  4. Step 4: Simplify right side
    635,711.60x = 199,514,890,368.55
  5. Step 5: Solve for x
    x = 199,514,890,368.55/635,711.60
  6. Step 6: Final answer
    x = 313,844.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.